96376cad35
Alexander Aring says: ==================== net: ipv6: add rpl source routing This patch series will add handling for RPL source routing handling and insertion (implement as lwtunnel)! I did an example prototype implementation in rpld for using this implementation in non-storing mode: https://github.com/linux-wpan/rpld/tree/nonstoring_mode I will also present a talk at netdev about it: https://netdevconf.info/0x14/session.html?talk-extend-segment-routing-for-RPL In receive handling I add handling for IPIP encapsulation as RFC6554 describes it as possible. For reasons I didn't implemented it yet for generating such packets because I am not really sure how/when this should happen. So far I understand there exists a draft yet which describes the cases (inclusive a Hop-by-Hop option which we also not support yet). https://tools.ietf.org/html/draft-ietf-roll-useofrplinfo-35 This is just the beginning to start implementation everything for yet, step by step. It works for my use cases yet to have it running on a 6LOWPAN _only_ network. I have some patches for iproute2 as well. A sidenote: I check on local addresses if they are part of segment routes, this is just to avoid stupid settings. A use can add addresses afterwards what I cannot control anymore but then it's users fault to make such thing. The receive handling checks for this as well which is required by RFC6554, so the next hops or when it comes back should drop it anyway. To make this possible I added functionality to pass the net structure to the build_state of lwtunnel (I hope I caught all lwtunnels). Another sidenote: I set the headroom value to 0 as I figured out it will break on interfaces with IPv6 min mtu if set to non zero for tunnels on L3. - Alex changes since v3: - use parse_nested which isn't deprecated - Thanks David Ahern - change to return -1 instead errno in exthdr handling to unify error code - change function name from ipv6_rpl_srh_decompress_size to ipv6_rpl_srh_size changes since v2: - add additional segdata length in lwtunnel build_state - fix build_state patch by not catching one inline noop function if LWTUNNEL is disabled Alexander Aring (5): include: uapi: linux: add rpl sr header definition addrconf: add functionality to check on rpl requirements net: ipv6: add support for rpl sr exthdr net: add net available in build_state net: ipv6: add rpl sr tunnel ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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README
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.